CN211583350U

CN211583350U - Carpal hole digger subassembly

Info

Publication number: CN211583350U
Application number: CN201922469091.4U
Authority: CN
Inventors: 滕晓峰
Original assignee: Ningbo No 6 Hospital
Current assignee: Ningbo No 6 Hospital
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model particularly relates to a carpal hole digger component, a guiding and positioning pipe, wherein the guiding and positioning pipe is divided into three parts along the length direction, the front end of a first section pipe is provided with a conical fixing part, the upper end of the side wall of a second section pipe is provided with a water inlet, the lower end of the side wall of the second section pipe is provided with a water outlet, a third section pipe is of a horn-shaped structure, and a fixing cap is arranged at the horn-shaped structure; the electric drill comprises a hole-forming needle core, a drill rod and a drill rod, wherein the hole-forming needle core comprises a hole-forming operating rod and a conical hole-forming part arranged at the front end of the hole-forming operating rod, and the tail end of the hole-forming operating rod is fixed with a clamping end of an electric drill; scrape bone object, scrape bone object including handheld pole and set up the bone portion of scraping at handheld pole front end, handheld pole tail end is provided with antiskid portion. The utility model is mainly used for treating the cyst and the necrotic bone of the carpal bone, and has simple structure and easy operation.

Description

Carpal hole digger subassembly

Technical Field

The utility model belongs to the technical field of the orthopedics trompil, concretely relates to carpal hole digger subassembly.

Background

The carpus is totally 8, and is arranged in a near row and a far row, 8 carpus form a carpus ditch with a depressed palm surface, and adjacent joint surfaces of all bones form a joint between the carpus; the proximal ends of the scaphoid, the lunar bone and the triangular bone form an oval joint surface, and a radial wrist joint is formed by the radial wrist joint surface and a joint disc at the lower end of the ulna; the palmar and dorsal arterial networks of the wrist supply the lunar bones, but mainly originate from the artery in the medial palmar region, and are mostly branched from the palmar branch of the radial artery; the joint surface of the lunar carpal bones is mostly formed by mutual interference of cartilages, lack of periosteum and tendon adhesion, and blood supply mainly depends on the blood nourishing vessels of the anterior carpal ligament.

The ischemic necrosis of the lunar bone is also known as Kienbock disease [1], which was discovered by Peste in 1843, and then the clinical and X-ray manifestations of the disease were systematically described in 1910 by Robert Kienbock, an expert in Austria radiology, and named Kienbock disease. The lunar bone is located near the center of the carpal row, the mobility is large, and the stability is poor. Its blood supply depends mainly on the small blood vessels on the surface of the radial wrist joint capsule and in the intertrochanteric ligament. For the people with frequent wrist movement, such as pneumatic pick and oscillator operators, the shock and impact are generated to the lunar bone for a long time, so that small blood vessels of a joint capsule and a ligament are damaged and blocked, the lunar bone is necrotized, the pressure in a necrotic lunar bone marrow cavity is increased, the circulation is further blocked, and the ischemic necrosis is aggravated. Endosteal ganglion, also known as periarticular cyst, is a rare clinical condition. It is good at the weight bearing joints of hip, knee and ankle, and is often found in the wrist joint of the upper limb, which is one of the causes of chronic wrist pain; but at present, no tool for removing the necrotic bones of the carpal bones exists.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a carpal hole digger subassembly.

The technical scheme adopted by the invention is as follows:

a carpal hole opener assembly comprising

The guide positioning pipe is divided into three parts along the length direction, the three parts comprise a first section pipe, a second section pipe and a third section pipe, the front end of the first section pipe is provided with a conical fixing part, the tail end of the first section pipe is connected with the front end of the second section pipe, the upper end of the side wall of the second section pipe is provided with a water inlet, the lower end of the side wall of the second section pipe is provided with a water outlet, the tail end of the second section pipe is connected with the front end of the third section pipe, the third section pipe is of a horn-shaped structure, and a fixing cap is arranged at the horn-shaped structure;

the trepanning needle core is matched with the guide positioning tube to work, the diameter of the trepanning needle core is 1.5 mm-2.0 mm, the trepanning needle core comprises a trepanning operating rod and a conical trepanning part arranged at the front end of the trepanning operating rod, and the tail end of the trepanning operating rod is fixed with a clamping end of an electric drill and used for drilling a carpal bone;

with the bone scraper of guide positioning pipe cooperation work, the diameter of scraping the bone scraper is 1.8mm, scrape the bone scraper and include handheld pole and set up the bone portion of scraping at handheld pole front end, scrape bone portion and can dismantle with handheld pole and be connected, handheld pole tail end is provided with antiskid portion for scrape remaining broken bone.

Preferably, the first section pipe, the second section pipe and the third section pipe are integrally arranged; the external diameter of first festival pipe and second festival pipe is 2.6mm, the internal diameter of first festival pipe and second festival pipe is 2.4 mm.

Preferably, the diameter of the front end port of the conical fixing part is larger than that of the conical hole part.

Preferably, the taper angle of the tapered opening portion is 42 °.

Preferably, the distance between the vertical axis of the water inlet and the vertical axis of the water outlet is 1 mm-1.5 mm, and the water outlet is connected with a negative pressure pipe.

Preferably, the front end of handheld pole is provided with the fixed slot, is provided with the internal thread on the fixed slot inner wall, scrape bone portion including the canned paragraph and with the integrative bone spoon of scraping that sets up of canned paragraph, be provided with on the canned paragraph with the internal thread matched with external screw thread on the fixed slot.

Compared with the prior art, the utility model, its beneficial effect who has: the utility model provides a carpal hole digger is used for the treatment of carpal cyst and carpal bone necrosis, it includes the direction orientation pipe that is used for carrying out the location direction to the hole digger, the direction orientation pipe has divided into the triplex according to the position, in the course of the work, first festival pipe is located human skin, the terminal surface of first festival pipe and the contact of carpal bone cortex, be provided with the toper fixed part, second festival pipe and third festival pipe expose outside human skin, be provided with the water inlet on the lateral wall of second festival pipe, the lower extreme is provided with the delivery port, and the distance between the vertical axis of water inlet and the vertical axis of delivery port is 1mm ~1.5 mm; the third section of pipe is of a horn-shaped structure, so that a tapping needle core and a bone scraper can be conveniently placed in the third section of pipe, the tapping needle core comprises a tapping operating rod and a conical tapping part arranged at the front end of the tapping operating rod, and the tail end of the tapping operating rod is fixed with a clamping end of an electric drill; the bone scraper comprises a handheld rod and a bone scraping part arranged at the front end of the handheld rod, and an anti-skid part is arranged at the tail end of the handheld rod; the utility model discloses simple structure, convenient operation has improved the effect of carpal trompil.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a guiding and positioning tube in a carpal hole cutter assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a hole-forming needle core in a carpal hole-forming device assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a bone scraper in a carpal hole cutter assembly according to an embodiment of the present invention;

wherein, 1-guiding the positioning tube; 2-punching the needle core; 3-a bone scraper;

101-a first section of pipe; 102-a second section of pipe; 103-third section pipe; 104-a fixed cap; 105-a water outlet; 106-water inlet; 107-tapered fixation;

201-a tapered opening portion; 202-a tapping lever;

301-hand lever; 302-fixing the rod; 303-bone scraping spoon; 304-non-slip portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the utility model discloses a carpal hole opener subassembly, including guiding orientation pipe 1, guiding orientation pipe 1 divide into three parts along its length direction, and these three parts include first section pipe 101, second section pipe 102 and third section pipe 103, and first section pipe 101 front end is provided with toper fixed part 107, and first section pipe 101 tail end is connected with the front end of second section pipe 102, is provided with water inlet 106 on the second section pipe 102 lateral wall, is provided with delivery port 105 at second section pipe 102 lateral wall lower extreme, and second section pipe 102 tail end is connected with third section pipe 103 front end, third section pipe 103 is the horn structure, is provided with fixing cap 104 at the horn structure; the trepanning device comprises a trepanning needle core 2 matched with a guide positioning tube to work, wherein the diameter of the trepanning needle core is 1.5 mm-2.0 mm, the trepanning needle core comprises a trepanning operating rod 202 and a conical trepanning part 201 arranged at the front end of the trepanning operating rod 202, and the tail end of the trepanning operating rod 202 is fixed with a clamping end of an electric drill; with the bone scraper 3 of guide positioning pipe cooperation work, the diameter of scraping the bone scraper is 1.8mm, and it includes handheld pole 301 and sets up the bone portion of scraping at handheld pole 301 front end, handheld pole 301 tail end is provided with anti-skidding portion 304.

The further improvement of the present invention is that the first joint pipe 101, the second joint pipe 102 and the third joint pipe 103 are integrally provided; the outer diameters of the first joint pipe 101 and the second joint pipe 102 are both 2.6mm, and the inner diameters of the first joint pipe 101 and the second joint pipe 102 are both 2.4 mm. And in the operation process, the first section of pipe 101 is positioned in the skin of the human body, the second section of pipe 102 and the third section of pipe 103 are exposed out of the skin of the human body, and the first section of pipe 101 occupies 1/2 of the length of the whole guiding and positioning pipe.

The further improvement of the utility model is that the diameter of the front end port of the conical fixing part 107 is larger than that of the conical hole-opening part 201, so that the conical hole-opening part at the front end of the hole-opening needle core can freely rotate in the guiding and positioning pipe, and the purpose of drilling is achieved; the distance between the vertical axis of the water inlet 106 and the vertical axis of the water outlet 105 is 1 mm-1.5 mm, and the water outlet 105 is connected with a negative pressure pipe. Wherein, water inlet 106 connects the inlet channel, when the trompil nook closing member operation of driling, pours into normal saline to the drilling position through water inlet 106, plays the effect of cooling, slagging-off, has effectively guaranteed the normal work of trompil nook closing member 2. And secondly, broken bones generated in the process of drilling the hole-opening needle core are taken out by the physiological saline and are discharged from a water outlet pipe.

The utility model discloses in, with water inlet 106 and delivery port 105 coaxial surface setting not, mainly prevent to annotate the normal saline in-process, the normal saline that water inlet 106 was annotated directly discharges from the delivery port 105 of below, can not play the purpose of cooling, carrying the broken bone, simultaneously the utility model discloses in, when annotating normal saline in leading registration arm 1, delivery port 105 is the closed condition.

The trompil nook closing member 2 is solid construction, and its diameter is 1.5mm ~2.0mm, and the diameter of trompil nook closing member 2 is less than the diameter of guide orientation pipe 1, is favorable to trompil nook closing member 2 free activity in guide orientation pipe 1, reaches the purpose of drilling. The tail end of an operating rod 202 of the hole-forming needle core 2 is fixedly connected with a medical electric drill, and the conical angle of a conical hole-forming part 201 arranged at the front end of the operating rod is 42 degrees, so that the hole forming is more labor-saving, and the damage to bones is minimum.

As the utility model discloses a further improvement lies in, scrape bone organ 3 and be after trompil nook closing member drilling 2 finishes, can make the broken bone that part does not drop discharge through scraping bone organ 3. The front end of the handheld rod 301 is provided with a fixing groove, the inner wall of the fixing groove is provided with an internal thread, the bone scraping part comprises a fixing section 302 and a bone scraping spoon 303 which is integrated with the fixing section 302, the fixing section 302 is provided with an external thread matched with the internal thread on the fixing groove, the bone scraping part is detachably fixed on the handheld rod 301 through the matching of the internal thread and the external thread, the bone scraping parts with different models and sizes can be replaced according to the actual operation requirement, and the shape and the size of the bone scraping part are smaller than those of the guide positioning tube 1; therefore, the bone scraper 3 can rotate in the guide positioning tube 1 and can also extend into the guide positioning tube.

The working process is as follows: before the use of the carpal hole opener, the carpal hole opener is sterilized for medical use, and then an opening is cut at the carpal bone of a patient, so that the guiding and positioning tube can conveniently extend into the skin, when the first section of the guiding and positioning tube extends into the skin, the conical fixing part of the guiding and positioning tube is embedded into the cortex of the carpal bone by knocking the fixing cap fixed at the horn-shaped structure, then the fixing cap is pulled out, the holed needle core is placed along the direction of the guiding and positioning tube, the tail end of the handheld operating rod of the holed needle core is fixed on the medical electric drill, when the conical hole part is arranged at a preset position, physiological saline is injected into the guide positioning pipeline through the water inlet, then the electric drill is turned on, in the working process of the hole-opening needle core, the water inlet is not closed, the physiological saline is continuously injected, and after the hole-opening needle core works, opening a water outlet, connecting the water outlet with a negative pressure pipe, and pumping out broken bones and physiological saline through the negative pressure pipe; after trompil nook closing member stop work, close the water inlet, take out the trompil nook member, will scrape the bone organ again and stretch into the drilling position from the guiding orientation intraductal, dig out remaining garrulous bone, and simultaneously, scrape the internal and external screw thread in the external screw thread on the bone spoon through the dead lever and the fixed slot on the handheld pole and mutually support, will scrape bone portion detachable and fix on handheld pole, can be according to actual operation's needs, change the big or small bone portion of scraping of different models size, and the shape size of scraping bone portion is less than the size of guiding orientation pipe, guarantee to clear away all garrulous bones.

Claims

1. A carpal hole cutter assembly, comprising: the guide positioning pipe is divided into three parts along the length direction, the three parts comprise a first section pipe, a second section pipe and a third section pipe, the front end of the first section pipe is provided with a conical fixing part, the tail end of the first section pipe is connected with the front end of the second section pipe, the upper end of the side wall of the second section pipe is provided with a water inlet, the lower end of the side wall of the second section pipe is provided with a water outlet, the tail end of the second section pipe is connected with the front end of the third section pipe, the third section pipe is of a horn-shaped structure, and a fixing cap is arranged at the horn-shaped structure;

the drill point comprises a hole-forming needle core which is matched with a guide positioning pipe to work, wherein the diameter of the hole-forming needle core is 1.5-2.0 mm, the hole-forming needle core comprises a hole-forming operating rod and a conical hole-forming part arranged at the front end of the hole-forming operating rod, and the tail end of the hole-forming operating rod is fixed with a clamping end of an electric drill and is used for drilling a carpal bone;

2. The carpal hole cutter assembly as in claim 1, wherein said first, second and third tube segments are integrally formed; the external diameter of first festival pipe and second festival pipe is 2.6mm, the internal diameter of first festival pipe and second festival pipe is 2.4 mm.

3. The carpal hole cutter assembly as in claim 2, wherein the diameter of the port at the forward end of said tapered fixation portion is greater than the diameter of the tapered hole portion.

4. The carpal hole cutter assembly as in claim 3, wherein said conical angle of said conical hole portion is 42 °.

5. The carpal hole cutter assembly as in claim 2, wherein the distance between the vertical axis of the water inlet and the vertical axis of the water outlet is between 1mm and 1.5mm and the water outlet is connected to a negative pressure tube.

6. The carpal hole cutter assembly as defined in claim 2, wherein the hand-held rod is provided at a front end thereof with a fixing groove having an inner thread formed on an inner wall thereof, the bone scraping portion includes a fixing section and a bone scraping spoon integrally formed with the fixing section, and the fixing section is provided with an outer thread fitted to the inner thread of the fixing groove.